# I am the Watcher. I am your guide through this vast new twtiverse.
# 
# Usage:
#     https://watcher.sour.is/api/plain/users              View list of users and latest twt date.
#     https://watcher.sour.is/api/plain/twt                View all twts.
#     https://watcher.sour.is/api/plain/mentions?uri=:uri  View all mentions for uri.
#     https://watcher.sour.is/api/plain/conv/:hash         View all twts for a conversation subject.
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# Options:
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#     offset  Start index for quey.
#     limit   Count of items to return (going back in time).
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# twt range = 1 1
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十年磨一劍 go 1-18 泛型**
泛型引入了抽象，無用的抽象帶來複雜性。什麼是泛型-----泛型程序設計（generic programming）是程序設計語言的一種風格或範式。泛型允許程序員在強類型程序設計語言中編寫代碼時使用一些以後才指定的類型，在實例化時作爲參數指明這些類型。各種程序設計語言和其編譯器、運行環境對泛型的支持均不一樣。Java 和 C# 稱之爲泛型（generics）ML、Scala 和 Haskell 稱 ⌘ Read more